CHINA MINE ENGINEERING

Reasonable stope structure parameters are of great significance to safe and economic extraction in mines. A copper iron ore was mined by sublevel open stoping followed by filling mining method. In this paper, the numerical simulation method was used to conduct a comparative study of different sublevel heights (12m and 17.5m), revealing the evolution laws of stress, displacement and plastic zone distribution of the stope under different sublevel heights. It can provide reference for mines under similar mining conditions.